Which triangles in the diagram are congruent? A.
triangle 1 and triangle 2
B.
triangle 1, triangle 2, and triangle 3
C.
triangle 1 and triangle 3
D.
triangle 1, triangle 3, and triangle 4

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

bn,mn,n.vn.

step-by-step explanation:

b.

step-by-step explanation: